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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › Mass balance VOF › Reply To: Mass balance VOF

March 4, 2022 at 1:24 pm
Rob
Forum Moderator
The monitors do just that: monitor what you tell them to. So, the main fluxes are checked on the inlets & outlets (usually). For the fluid domain we use the volume integrals etc. It can get more complicated when inlet & outlet don't tie up as the volume monitor is the current value not the change from the last time step. Fortunately we can also write the monitors out as text and Excel has improved significantly in the last 25 years..... No comment on Windows!
In a case I have now it's even more fun as I'm adding DPM droplets that hit a wall to form a film, that gets thicker and switches to VOF to then accumulate until something overflows. I'm thinking of writing that one up as a study question for the next intern!